Snowfall depth data only goes back to 1991 for Quality Controled source.

The preliminary data is for the date the observation was reported and not
necessarily for the local date. The reports are around 7 AM, so the high
temperature (for example) was most likely for the previous date.

Plot

Open this plot in a new window for comparison with other plots. Once the
image is loaded up in another window, you can modify this plots
parameters.

You should be able to 'copy & paste' this raw data listing into a simple
text editor and save the data file on your machine. Most GIS systems can
then import this dataset as a layer. You may have to omit the commented lines
(#) if your GIS has trouble importing the data.